Home / 67,200.72-100,820.52-20,452.38

Finding the Fourth Proportional to 67,200.72, 100,820.52 and 20,452.38

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Solution

The fourth proportional to 67,200.72, 100,820.52 and 20,452.38 is: 30,684.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,200.72 : 100,820.52 = 20,452.38 : x
  2. Step 2: Convert to fraction form
    67,200.72/100,820.52 = 20,452.38/x
  3. Step 3: Cross multiply
    67,200.72x = 100,820.52 × 20,452.38
  4. Step 4: Simplify right side
    67,200.72x = 2,062,019,586.84
  5. Step 5: Solve for x
    x = 2,062,019,586.84/67,200.72
  6. Step 6: Final answer
    x = 30,684.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.